Machinery
A Global Benchmark in Special Foundation Engineering
Proven for over 50 years in civil engineering and foundation construction worldwide: LEFFER machines are synonymous with robust construction, high precision, and vibration-free operation—from casing-installation machines for diameters up to 3,800 mm to grabs for drilling depths exceeding 100 m. Every machine is developed, manufactured, and tested in-house. The result: reliable performance even under the toughest conditions—on the world’s most demanding construction sites.
Casing extractors machine
When completing piles in the diameter range 600 to 1500 mm, the use of a a rotary drilling rig is often inefficient. Crane work is required to install the reinforcement, tremie pipes as well as during the subsequent concreting process, for which the drilling rig is only equipped with an auxiliary winch.
To ensure safe retraction of the …
Casing machines KL type for combined use rotary drilling rigs
LEFFER offers short-design casing machines (type KL) to support the rotary drilling rig. In general, LEFFER casing machines have been designed based on specific experience.
The five-part clamping collar that surrounds the drill pipe prevents plastic damage to the pipe circumference and ensures efficient and force-fit transmission of torques and …
Casing Oscillators for cable excavator attachment
Hydraulic oscillators are used when the torque of conventional drilling drives is insufficient or the use of rotary drilling rigs is uneconomical, for example in the case of large drilling depths or high casing friction due to the subsoil. Furthermore, it is used when the pull-back force of the carrier is not sufficient for pulling the casings. …
